Windows 0x80070490: Fixing Corrupted Windows Update Components

The 0x80070490 error in Windows typically occurs during an update attempt, indicating that some of the update components are corrupted or missing.

This issue is commonly associated with Windows Update, and it can prevent updates from installing properly.

To resolve this error, start by running the Windows Update Troubleshooter.

Navigate to Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Update.

This built-in tool can automatically detect and fix many update-related issues.

If the troubleshooter doesn't solve the problem, try resetting the Windows Update components manually.

Open Command Prompt as an administrator and type the following commands to stop the update services: net stop wuauserv and net stop bits.

Next, delete the content of the C:\Windows\SoftwareDistribution folder, which stores temporary update files.

Once the folder is cleared, restart the update services with the commands net start wuauserv and net start bits.

After this, attempt to run Windows Update again.

If the issue persists, you may need to use the sfc /scannow command to repair any corrupted system files and DISM /Online /Cleanup-Image /RestoreHealth to fix any underlying system image issues.